Part A
Read this sentence from the passage.
They think about zipping past cars that are stuck in traffic.
In the sentence, what does the word zipping most nearly mean?

solving a problem

moving at high speed

closing up an opening

approaching in a stealthy manner
Part B
Which sentence from the passage best supports the answer to the previous question?

"Now with smart bikes and new technology, it's possible to get a program going for $3,000 to $5,000 per bike."

As Clarke asserts, bike sharing not only helps the environment and relieves traffic congestion but also makes riders happy.

And a survey of riders in Washington, D.C., reported that about 30 percent of bike sharers experienced stress reduction as well as weight loss.

"In places like Washington, D.C., and Chicago, you see people in suits and ties riding the bikes because it's a convenient and effective way to get to work."